PART I. KINEMATIC. BOOK IV. AND APPENDIX. London: MACMILLAN AND CO. AND NEW YORK. 1887 [All Rights reserved.] PREFACE. I HAVE sufficiently explained in my letter to Mrs. Clifford (see "Mathematical Papers") the reasons which led me to accept the responsibility of editing the following fragments. A few words as to the fragments themselves may not be out of place here. The first 56 pages are contained in 43 pages of MS. These are carefully written out and paged, and in the form in which they are left may be considered as nearly representing that in which they would have been given to the world by Clifford himself. Pages 57 to 72 consist of detached portions of manuscript written out in Clifford's usual careful manner, and were evidently intended, after a further examination, to take their places in his book. The remainder of Appendix I. is printed here mainly with the view of showing Clifford's work in its early stage. Thus (C) on the "Top" is in its present form almost, if not quite, unintelligible: most probably Clifford intended to discuss the subject in connection with the "Kinetic analogy” of Kirchhoff. In Appendix II. I reprint the "Syllabus of Lectures on Motion" from the "Papers" (pp. 516-524), chiefly because it contains the article on Fourier's theorem which was promised in the "Dynamic," p. 37: and the C. b |